I have one piece of Sea Elite gear, a 7mm jumpsuit wetsuit. I also have a 3mm farmer John from Henderson. I've worn them both about the same amount. The Sea Elite has threads coming undone and a small hole that just appeared one of the legs; the Henderson is pretty much like new. However, I paid less than $100 for the Sea Elite (on sale) and over $200 for the Henderson. So, you get what you pay for, but for the price, the Sea Elite was a fine buy in my opinion.
If you don't need something today, it's worth checking the classifieds here, on ebay, and your local craigslist for used stuff. There is a lot of 'churn' in dive gear, with plenty of it lightly used. There's a high percentage of people who buy a bunch of new gear for their OW classes, then never dive again, and this basically new gear shows up on the used market. I usually won't pay more than half of discount retail for used gear, given the risks of buying used. That said, I've never gotten a bum deal and have saved a lot of money.
BCs: no reason not to buy used
Regs: may need to be serviced before you can use them, which costs $50 - $100, so figure that into your costs
Wetsuits: no way -- people pee in their wetsuits -- 'nuf said
I've gotten two BCs (a Zeagle express tech and a Dive Rite backplate with a Hollis wing), three regulators (a Mares Prestige 22 and two Hollis DC1/212's), and my dive computer (Mares Nemo Wide), all barely or never used open box like new for about half what I would have paid new online. So you can get name-brand stuff that way for less than the 'budget' packages.